TASEmulators / TASEmulators/BizHawk
INES 005 MMC5 mapper 5 CHR swap issue. Afected cores quickNES, NEShawk, subNEShawk
Nobody has claimed this yet.
- Dominant language
- C#
- Stars
- 2.8k
- Forks
- 468
- PR merge metrics
- No merged PRs in 30d
Description
Summary
I made a project here where the CHR banks are swaped wrong. It works on all other emulators I tried.
https://www.dropbox.com/scl/fi/6ktl71qmxd91x4xucjmx0/CV1_RandomizerV0.5.7z?rlkey=i6u8e95ochjw1f4l9640j7rhs&dl=0
Repro
Apply IPS to Castlevania 1 or patch from source. Might help to find the issue. Still need to see how other games do it to not trip this issue. Currently I do not know why this is happening in BizHawk!
Output
Host env.
- BizHawk 2.9.1; Win11 Pro; Intel i7-4790K
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by applying the IPS patch to Castlevania 1 and reproducing the CHR bank swap in BizHawk 2.9.1, comparing the affected quickNES, NEShawk, and subNEShawk cores with other emulators. Done means the CHR banks are swapped correctly for the provided reproduction across the affected cores.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp
- Domain
- game-dev
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100